#include <stdio.h>
#include<stdlib.h>
#include<string.h>
#ifndef _LOGIN_H_
#define _LOGIN_H_
#define MAX_LENGTH 0x100

extern int PASSWORD_LENGTH;

typedef struct{
    int len; 
    char* p;
}stack;
int push(stack* s, char c);
int pop(stack* s);
int match(char* try);

#endif
